Facebook (NASDAQ:FB) is expected to unveil its anticipated mobile ad plans at a Feb. 29 event in...

Facebook (NASDAQ:FB) is expected to unveil its anticipated mobile ad plans at a Feb. 29 event in New York. It's also being reported that Facebook is planning to introduce a version of its Timeline feature for company and brand pages, and is experimenting with ads that would remain in view longer on a user's news feed. Serving ads to Facebook's 425M mobile users could represent a huge revenue opportunity.